And john l



UNITED M STATES fPATENT OFHCE.

yGEORGE M. HATHAWAY, OENEWYORK, As'sIeNoRor` A 1 AR1` ToDAvID P. DEY, onBROOKLYN, JEEEIQJRsoN-fr. RAPLER` AND WARREN s. DEY, OE NEW YORK, ANDJOHN L. HUBEARD, OE New ROCHELLE, N. Y.

PE RMUTA'rioN-LOCK.

SPECIFICATION forming part of Letters` Patent No."248,1'73, datedOctober 11, 1881.

Application nien september 19, lssx. '(Modei.)

To all 'zt-hom, it may concern y Be itknown that I, GEORGE M. HA'rHAWAY,a citizen of the United States, residing` at'New York, in the county ofNew .York and State of New York, have invented certain new and usefulImprovements inPermutation-Locks; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accom panyin gdrawings, and toletters or figures of reference marked thereon, `which form a part ofthis specification. v l

My invention relates to a new and useful improvement inpermutation-locks adapted for service upon trunks, closets, desks, andthe like; and the novelty consists, essentially, inthe construction andarrangement of parts, as will be more fully hereinafter set forth, and

- specifically pointed out in the claims.

1n this class of devices simplicity ot' construction, a minimumliability to get ont of order, efficiency in service, and reliabilityand compactness are of 'greatimportance To enable others to make and usemy invention, I will now proceed to describe its construction andoperation, reference being hadf at right angles with the Vplane of theface, a

sleeve, a3. Around this sleeve loosely operates a disk, B, having atangential arm, B', at the outer end of which -is the bolt B2. having abeveled surface. These parts B B B2 are formed in one piece, the bolt B2operating within the guide a.

Pivoted upon the arm B', at c, is a lock-pawl,

C, having a hook, c', and a bearing, c?, for one. 5o

arm of a spring, C', which is properly secured tolugs` or projectionscr* upon the face-plate. The hook portion c is adapted to engage in therecesses d in interchangeable combination- Yd isks D, which maybe two ormore in number, and operateloosely, butsnugly, aroundt he sleeve c whenthe said recesses d are oppositel each other. These recesses have abruptsides, and the lock-paw] can only be released therefrom as it is forcedout by the operating-disk, 6o

which will hereinafter be described.

'.Each of the disks D has, at equal annular linesl from the peripheries,pins d.' vdriven entirely through the disk and projecting upon eachside-and differentially arranged with regard to the locking-recess dupon each disk. For instance, taking the recess as a basis and turningtoward the left, the pins upon one disk may be placed at one-seventh ofthe circuitiference, and upon another disk at one-eighth, 7o and so on,care being taken not to place the pins opposite from the recesses d. Bythis construction the disks may be reversed or interchanged at will, andeach change of position or location will change the combination. `75, Asshown and described, there are but two ot' the disks D; but it islevident that more may be used if desired, or as many as the sleeve a3will hold. These disks D must be held into a desired set positionbyfriction, and to this end 8o I provide a series of frictionspring-lingers, e c, extending from a body, E, and formed ot' one pieceof metal, the body being clamped tightly within a slot, c',- in a -splitprojection or lug, E', upon the arm B.

It is important, where springs are formed of very thin spring-steel, toavoid unnecessary friction, which friction tends to weaken the spring,and, in delicate complications, to destroy the efficacy of the parts. Toavoid this 9o I construct and arrange the parts specified in such amanner relatively to each other that all manipulations of the bolt whenthe combination is on serves to move knob-shank,bolt, pawlrdisks, andthe lingered spring together, V9 5 Vand the only friction between theparts is con-4 lined to a very limited space between the pawl G andspring C; hence the advantage of securing the fingered spring E c to thebolt-arm B.

H indicates` the operating-disk, and itis provided with a recess, I1,having one abrupt side and an incline, h', ruiming from the bottom ofthe recess to the periphery. Ata uniform distance from the common centerof this disk is secured a circle of pinsJt, of any desired number, ofsufficient distance apart to admit be tween each pair of pins aspring-arm, I, having an open slot, i, which, when in position, embracesa slotted rectangular port-ion, t', of the knob-shank, and it may bereadily changed t0 any position at will by springing the arm over thepins h2, each change forming a separate combination.

Kindicates the knob-shank; Ii', the outer disk,havingthc peripheralfigures; and K2, the knob.

L indicates the hasp-body, having bearings l of semi-cylindrical form,to receive thejournals m of the hasp-tongue IWI, at the free end ofwhich is the hnsp-staple m. Iligidly secured to the hasp-body L, at o,isa Hat spring, 0, the free end o of which bears against the back surfaceof the tongue, to throw it out of the slot a in the faceplate A as soonas the. lock-bolt releases the staple m.

Instead of having the series of pins upon the Operatingdisk, I may forma series of holes and place a single pin upon the spring-arm. It will benoticed that by placing the frictionsprings upon the arm B the disks,bolt, &c., all move together, avoiding wear, which would result if thesprings were xed to the plate.

The operation of myinvention is as follows: The knob-shank is passedthrough the proper aperture in the face-plate until the sleeve a3 isprojected through to its greatest extent and the figured disk lies closeto the face. The` combination-disks are then put in place and thefriction-springs brought into action, after which the operating-disk issecured upon the shank, and the spring-arm made to engage therectangular end. As thus placed, by turning the armin onedirection thepin upon the back or under side engages the pin upon the second disk.The opposite pin upon that disk engages the'next, and so on until thelast disk is engaged and the recess d therein brought in conjunctionwith the hook on the lock-pawl. Then reverse the revolution ofthe knobuntil, by a similar train of action, the next disk is brought into asimilar relation, the springs upon the arm B' holding each one byfriction as soon as it is in position. Then the last or operating diskis forced into position the lockpawl springs into position and the boltmay be withdrawn.

It will be seen that the changes inthe combination are almostinnumerable.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. 'Ihe spring-arm I, having rectangular open slot i, combined with theknob-shank having rectangular slotted portion i', and withthe-operating-disk H, having pins h2, said arm serving the severalfunctions of holding the entire series of disks in place, of changingthe combinations by being sprung over and be tween the pins h2, and ofbeing the operating means for manipulating the series of disks, as andfor the purposes specified.

2. The combination ofthe disks D d d and friction-springs, theo1)eratingdisk H, having annular pins h2, the spring-arm I, the springlock-pawl (l, and lock-bolt B, all adapted to serve as and for thepurposes set forth.

3. The disk B, arm B', and bolt B2 made in one piece, in combinationwith the lock-pawl C, pivoted upon said arm, and the spring adapted tohold the lock-bolt in position, and also hold the springlock-pawl intoconstant contact with the disks, as specified.

4.-. The spring-body E, having spring-fingers c e formed of one piece ofmetal, said body being clamped or held within a slot, e', in a lug, E',formed upon the bolt-arm B', in combination with disks I) D, pawl C, andcompound spring Cf, whereby the disks, bolt-arm, and pawl will movetogether when the bolt is retracted, as herein specitied.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE M. IIATHAVV AY.

Witnesses:

C. S. DRURY,

W. lll. IloDGES.

